Freezing press



March 15, 1927.

J. G. Bu'RNs .ET AL FREEZING PRESS Filed Feb. -23, 1926 11W a fi f W 3 3S ATTORNEY Patented Mari 15, 1927.

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v JULIUS a. scans AND nnmmnr s. Davis. on NEW YORK, N. Y., Assmnons 'ro runncoma rnonucrs or AMERICA, me, A CORPORATION or DELAWARE.

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Application filed rebruary 2a, 1926. Serial no. 90,691.

This invention relatesgenerally to presses of the manually operated type, the invention having more particular reference to an improved refrigerating press. n

The Object of the invention is the provision of an improved -refrige'ratin press adapted to compress the solid form carbon dioxide (CO into suitable cartridges or containers.

For further comprehension of the invention, and of the. objects and, advantages thereof, reference will be'had to the following description and accompanying drawing,

nd to the appended claims-in which the Va.

rious novel features of the invention are more particularly set forth.

Fig. 1 of the drawing, is a perspective view -of our improved refrigerating press.

. Fig. 2 is a top plan view thereof. Fig. 3 is a vertical sectional view taken on the line 3-3 of Fig. 2. As here embodied our improved refrigerating press, comprises a lower press member 10, of hollow cylindrical construction, and provided with a depending aw shaped element 12, having an adjusta le member 13, threadedl attached to and extending from the jaw s aped elemeht 12, as a means of at- .taching thesaid lower press member 10, on a table, bench or the like. The bottom of element has-threadedly attached thereto, at

' 7 its center, a connection-14,'having an axial aperture 15, and a lower threaded extremity 16. ,It being understood that the upper por' tion 17 of the connection 14 extends within the bottom element 11, and that its lower threaded extremity 16 extends beyond the bottom element 11, and is held inposition by -a i1ut 18 threadedly attached to the said connection; I

Theupper press member 19, of hollow cylindrical' construction and havin a top' ele- 1 ment; 20, is provided with depen mg ears 21 suitably locatedto coincide with the ear 22 extendmg from the said lower ress member 10, the said upper press mem er 19 being hinged to the said -lower press member, as at 23, by a pin, or t e'like, located in the said ears 21 andin the bar 22. The upper press member19 is also provided with a The handle24, pivotally attached thereto, as at 25, a

andle 24, depending therefrom, and opposite to the said ears'21 as a means of opening the said pflrgss members 19 and 11.

latch 26, preferablyiu to engage the depending catch 27 of the shaped, and adapted I P TENT OFFICE.

lower press member-11, when the said press members 19 and 1 1 are closed,.and when the sad latch 26 is pressed-or forced inward, as

a means of holding the said press members in a closed position.- .The top element member 19 is provided with a plurality of of the upper press circular apertures, 20' comparatively small,-

and closely spaced. The support 28 has downward extendedelements 29 and 30, and.

is attached to the top element 29, as at 31,-

by bolts, studs, or, the like, andis adapted to shdably engage the upper portion 32, of the plunger 33, which'gis provided with a lower portion 34, extending through the said top element 20, the plunger 33 is. also provided with an enlarged ortion 35,- po si-- tioned. so, as to limit the said engagement of the lower portion 34. The superimposed spring 36, ispositionedon the said plunger 34 in the said engaged position. The upper portion 32; has a depending member. 37 or pointer, suitably attached thereto, and located so as to register with thegraduations 38 on the arm 39,1or scale, which is attached to the said support 29..

- The 0 eration, or functioning of our improved eviceis as follows, a cartridge 40 or container, of cardboard, or any suitable 33 so as to normally hold the lower portion .materi'al, is placed in ourimproved device,

or compressible material 43' being laced below. the said bottom 42 of the cartri ge 40,

a piece of semi-porous material 44.is'place'd over the said cartridge, and the upper press member 19- is placed in a closed position, and

locked by the latch 26. The lower threaded extremit 16 of the connection 14, is attached to a ta containing; carbon dioxide (00,) under ressure, when the valve attached to the sai .tank is oplened, the said carbon di- I e cartridge 40, and-will. and through the piece of 44, and through the oxide willenter. t pass through same, semi-porous material apertures 20' in the top element 20,'the solid form of carbon dioxide, commonly called dry ice, will be entrapped and compressed in the cartridge 40. It being further understood that the piece or compressible material 43, will act as a' cushion, and that the said plunger 33 will be raised, and that the said valve of the said carbon dioxide tank will be manually closed when the pointer 37 reaches \the desired graduation 38 on the scale 39, ,depending upon the extent or amount the dry ice is desired to be com pressed.

While we have above described the preferred form, construction and arrangement of the several elements employed, it will be understood that the device is, nevertheless,

susceptible of considerable modification therein, and we therefore reserve the privilege of resorting to all such changes as may.

be fairly embodied within the spirit and scope of the invention as claimed.

Having thus described our invention,

what we claim as new and desire to protect by Letters Patent of the United States is asfollows:

1. A refrigerating press, comprising a lower press member of hollow cylindrical construction, a jaw-shaped element depending from said lower press member, an adjustable member engaged in said jaw shaped element, a connecting element threadedly engaged in said lower press member, an upper press member hingedly connected to said lower press member, a handle depending from said upper press member, said handle being positioned directly opposite the hinge of said press members, a latch pivoted to said handle, a catch depending from said lower press member, and engageable with said latch, said upper press member being formed with a plurality of apertures, a support having downwardly extending elements attached to said upper press member a plunger having its upper portion engaged in said support, the lower portion of said plun er extending through said upper press mem er, an enlarged portion on said plunger to limit the downward motion of said plunger, a superimposed spring on said plunger, normally urging said plunger downward, a pointer depending from the upper portion of said plunger, and an arm with graduations thereon attached to said support, and

extending along the line of motion of said to said handle,-a catch depending from said lower press member, and engageable with said latch, said upper press member being formed with a plurality of apertures, a support having downwardly extending elements attached to said upper press member, a plunger having its upper portion engaged in said support, the lower portion of said plunger extending-through said upper press member, an enlarged portion on said plunger to limit the downward motion of said plunger, a superimposed spring on said plunger, acting between said enlarged portion and said support, normally urging said plunger downward, a pointer depending from the upper portion of said plunger, and an arm with graduations thereon attached to said support, and extending along the line of motion of said pointer.

3. A refrigerating press, comprising a lower press member of hollow cylindrical construction, a jaw shaped element depending from said lower press member, an adjustable member engaged in said jaw shaped element, a connecting element threadedly engaged in said lower press member, an upper.

press member hingedly connected to said lower press member, a handle depending from said upper press member, said handle being positioned directly opposite the hinge of said press members, a latch pivoted to said handle, a catch depending from said lower press member, and engageable with said latch, said upper press member being formed with a plurality of apertures, a support having downwardly extending elements attached to said upper press member, a

=plunger, normally urging said plunger downward, a pointer depending from said plunger, and an arm with graduations there on attached to said support, and extending along the line of motion of said pointer.

4. In a device of .the class described, a

lower press .member, and an upper press member hinged thereto, said upper press member having a depending handle and a latch pivoted thereto, to engage a catch of the sand lower press member, so as to hold the said pres's members closed, said upper press I member having a top element provided with a plurality of apertures, said lower press member having a connection attached at the center of a bottom element of the said lower press member, a support having downward extended elements, and attached to the said top element, and adapted to slidably engage the upper portion of a plunger provided with a lower portion extending through the said top element, said plunger peovided with an enlarged portion, posit oned to limit the said engagement of the said lower portion, a superimposed spring positioned 5 on the said plunger so as to normally hold the said lower portionin the said engaged position, the said upper portion. having a pointer attached thereto, and located so as to register with graduations on an arm attachedto the said support.

In testimony whereof we our signatures.

. 10 have I aflixed JULIUS GQBURNS. HERBERT s. DAVIS. 

